how to make his one line into a bash shell

limbooface · 12-10-2020, 09:06 AM

Hi this one line works fine in a terminal.

How do I write this find command so that it works in a bash shell script.

find /projects/projectname -type d | parallel -j 32 mmputacl -i /root/folderacltopush.acl {} > /root/folderacltopush.acl.log 2>&1

Thanks

Turbocapitalist · 12-10-2020, 09:17 AM

Welcome.

You make a file, change the permissions so that it is executable,

Code:

mkdir ~/bin/
touch ~/bin/myscript
chmod +x ~/bin/myscript

then edit it to contain almost the same information:

Code:

#!/bin/sh

PATH=/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin

set -e

find /projects/projectname -type d -print \
| parallel -j 32 mmputacl -i /root/folderacltopush.acl {} \
> /root/folderacltopush.acl.log 2>&1

exit 0

Then you can run it,

Code:

~/bin/myscript

The "set -e" is optional. It causes the script to exit as soon as any command fails. That helps with debugging.

Some resources which are useful for learning shell scripts:

Edit: by the way, the {} does not fit with where it is used and if your formula really does work in the terminal then that part can probably be removed. Perhaps xargs is missing from your script?

limbooface · 12-10-2020, 10:11 AM

Thanks that worked. If I want to add another find command do i just use the if then statement?

Turbocapitalist · 12-10-2020, 10:17 AM

I didn't see an if-then statement in your example, but that aside the general answer is just keep adding lines to the script as needed.

Notice first that you have a pipe feeding output from find into parallel and then from there you have a redirection to capture that output into a file. So that one line is a three-in-one action.